Hybrid boat and underwater watercraft
Hybrid-powered underwater scooter
Hydrodynamic configuration for underwater vehicle
Hydrodynamically and aerodynamically optimized leading and...
Hydrofoil sailboat with control system
Hydrogen generation apparatus for an underwater vehicle
Ice fish casting submarine having bait/lure carrying...
Immersion apparatus carrying detachable and self-contained prosp
Individual submarine diving equipment
Individual underwater propulsion device
Inflatable undersea vehicle system of special utility as a daugh
Internal passage underwater vehicle
Large diameter low RPM propeller for torpedoes
Leg-mounted propulsion device for swimmers and divers
Load orientating device
Location and movement of remote operated vehicles
Low-fuel-consumption transport ship
Manned submarine
Marine shaftless external propulsor
Marine units